1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
MrRissso [65]
3 years ago
12

Calculaye the perimeter and area of these composite shapes

Mathematics
1 answer:
lora16 [44]3 years ago
4 0

For this case we have that the perimeter of the figure is given by the sum of the lengths of the sides, that is:

14 + 18 + 3 + 4 + 3 + 4 + 3 + 4 + (14-9) + (18-12) = 64

Thus, the perimeter of the figure is 64 centimeters.

Now, we find the area of the figure:

We have that by definition, the area of a rectangle is given by:

A = a * b

Where:

a and b are the sides of the rectangle

We have 4 vertical rectangles from left to right:

A_ {1} = 14 * (18-12) = 14 * 6 = 84 \ cm ^ 2\\A_ {2} = (3 + 3 + 3) * 4 = 9 * 4 = 36 \ cm ^ 2\\A_ {3} = (3 + 3) * 4 = 6 * 4 = 24 \ cm ^ 2\\A_ {4} = 3 * 4 = 12 \ cm ^ 2

Thus, the total area isA_ {t} = 156 \ cm ^ 2

Answer:

The perimeter of the figure is 64 centimeters.

A_ {t} = 156 \ cm ^ 2

You might be interested in
NEED HELP ASAP. WILL GIVE BRAINLYIST.
Eva8 [605]
Actual length = 3.5 × 120
actual length = 420 cm
actual length = 4.2 m

actual width = 2.5 × 120
actual width = 300 cm
actual width = 3 m

actual area = l × w
actual area = 4.2 × 3
actual area = 12.6 m²

the answer is b
5 0
2 years ago
What is the value of n in the equation 2.3 × 10 9power = (1 × 10 3power)(2.3 × 10n)
Amanda [17]
Hello,

2.3 x 10^9 = ( 1 x 10^3) ( 2.3 x 10^n) 

Solution:

Take the logarithm of both sides of the equation to remove the variable from the exponent. 

n=6


Faith xoxo
7 0
2 years ago
Solve each system of equation using any method.<br> 7 x + y = 5 2x - y = 4
nexus9112 [7]

Answer:

x = 1

y= -2

Step-by-step explanation:

to solve this system of equation , simultaneously using the substitution method

we say let

7 x + y = 5 ............................................. equation 1

2x - y = 4 ................................................... equation 2

from equation 2

2x - y = 4 ................................................... equation 2

2x - 4 = y

y = 2x -4.......................................................... equation 3

put the value of the y = 2x -4 into equation 1

7 x + y = 5 ............................................. equation 1

7x + 2x - 4 = 5

9x-4 = 5

9x = 5 + 4

9x = 9

divide both sides by the coefficient of x which is 9

9x/9 = 9/9

x = 1

substitute the value of x = 1 into equation 3

y = 2x -4.......................................................... equation 3

y = 2(1) -4

y = 2 - 4

y = -2

to check if you are correct put the value of x and y into any of the equations and you will see that the left hand side will be equal to the right hand side.

2x - y = 4 ................................................... equation 2

2(1) -(-2) = 4

2 + 2 = 4

4=4................................... proved

7 0
3 years ago
Simplify:<br> 25x - 6X - 18x + 7
azamat

Answer:

x+7

Step-by-step explanation:

25x - 6x - 18x + 7

x + 7

6 0
2 years ago
PLEASE ANSWER!!!!!!!!!! I'LL GIVE BRAIN !!!!!!!!!!!!!!!!!!!!!! A _______ is a ratio that compares two things with different unit
Artyom0805 [142]

Answer:

RATE

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • What does x equal ?
    12·1 answer
  • solve this system of linear equations. separate the x- and y-values with a comma -2x = 10 -6y, 20x = 62 +6y
    6·1 answer
  • Solve the systems of equations by substitution<br> 3/8x + 1/3y = 17/24<br> X + 7y = 8
    8·2 answers
  • NEED THESE ANSWERED ASAP SO I CAN GRADUATE THIS WEEK
    12·2 answers
  • For what value of theta does sin 2theta = cos(theta+30)?<br> Show steps
    8·1 answer
  • Rectangle DEFG with vertices D(-4, 3), E(0, 2), F(-2, 6), and G(-6, -5): (x + 4, y + 1)
    10·1 answer
  • Juan went to a wholesale store to buy eggs for his restaurant. The wholesale store only sells eggs by the dozen, at $3.29 per do
    11·2 answers
  • What is 25% Of 30% Of 400?
    12·1 answer
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    12·2 answers
  • Pls help 15. Find the exact area of the shaded region of the circle shown in the diagram.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!